View Pit Stop page for race #221 by professa95 — Ghost race
View profile for Sean (professa95)
| Official speed | 65.32 wpm (124.19 seconds elapsed during race) |
|---|---|
| Race Start | January 25, 2019 6:18:07am UTC |
| Race Finish | January 25, 2019 6:20:11am UTC |
| Outcome | No win (3 of 5) |
| Accuracy | 96.0% |
| Points | 108.86 |
| Text | #3550368 (Length: 676 characters) Mitochondria and chloroplasts display similarities with bacteria that led to the endosymbiont theory. This theory states that an early ancestor of eukaryotic cells engulfed an oxygen-using non-photosynthetic prokaryotic cell. Eventually, the engulfed cell formed a relationship with the host cell in which it was enclosed, becoming an endosymbiont, a cell living within another cell. Indeed, over the course of evolution, the host cell and its endosymbiont merged into a single organism, a eukaryotic cell with a mitochondrion. At least one of these cells may have then taken up a photosynthetic prokaryote, becoming the ancestor of eukaryotic cells that contain chloroplasts. |